求lim n→∞ (1+2/n)^n+3

求lim n→∞ (1+2/n)^n+3 求极限lim [ 2^(n+1)+3^(n+1)]/2^n+3^n (n→∞) lim n →∞ (1^n+3^n+2^n)^1/n,求数列极限 求极限lim(x→∞)（1/n+2/n+3/n..+n/n） 求极限lim(-2)^n+3^n/(-2)^[n+1]+3^[n+1] (x→∞) 求极限：lim(n→∞)[（3n+1 ）/（3n+2）]^(n+1) 求极限lim(n→∞)(3n^2-n+1)/(2+n^2)? lim（n→∞) （(2n!/n!*n)^1/n的极限用定积分求 lim(n→∞)[1/(3n+1)+1/(3n+2)+~1/(3n+n)] 求极限lim[n→∞](n^2+1)/(2n^2+3) 求极限n~∞,lim(n+1)/2n 求一道极限题lim[(a^1/n+b^1/n)/2]^n n→∞